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Fire damper through roof penetration

Question asked by branimir.segotic1 on Jan 27, 2019
Latest reply on Jan 28, 2019 by milt.werner

Hi All,

 

I would like to know do I need to have fire damper through roof penetration as described on picture in attachment?

 

Basically I have supply fan which serves each floor of the building and on each floor exit the system is protected with fire damper… Putting the fire damper on roof seems like double protection to me? Does NFPA 90A describes this?

 

Best regards, Branimir

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